I would like to buy a battery for my F4. Went to the battery store the other day and it's not the right battery. The positive and the negative were vis-a-Vera with the wiring. Do I need to get a different foreign battery that I can't get at any motorcycle shop because the cycle gear I was at said they didn't carry it. I didn't want to drive to Pro Italia for an expensive battery. So first choice was here! Thanks.